
package org.example.baseinfo.config;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.*;

import java.time.Duration;

@Configuration
@EnableCaching
public class RedisConfig extends CachingConfigurerSupport {
	/**
	 * 默认redis过期时间 24小时
	 */
	private static Duration timeToLive = Duration.ofHours(24);
	public static final String KEY_PREFIX = "UserCenter";

	@Bean
	@Primary
	public RedisCacheManager cacheManager(RedisConnectionFactory redisConnectionFactory) {
		RedisCacheConfiguration cacheConfiguration = RedisCacheConfiguration.defaultCacheConfig()
				.entryTtl(timeToLive)
				.computePrefixWith(cacheName -> KEY_PREFIX.concat(":").concat(cacheName).concat(":"))
				.serializeKeysWith(
						RedisSerializationContext.SerializationPair.fromSerializer(myKeySerializer()))
				.serializeValuesWith(
						RedisSerializationContext.SerializationPair.fromSerializer(myValueSerializer()))
				.disableCachingNullValues();
		return RedisCacheManager.builder(redisConnectionFactory).cacheDefaults(cacheConfiguration)
				.build();
	}


	@Bean(name = "redisTemplate")
	@SuppressWarnings("all")
	public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory factory) {
		RedisTemplate<String, Object> template = new RedisTemplate<String, Object>();
		template.setConnectionFactory(factory);
		Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(
				Object.class);
		ObjectMapper om = new ObjectMapper();
		om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
		om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
		jackson2JsonRedisSerializer.setObjectMapper(om);
		StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
		// key采用String的序列化方式
		template.setKeySerializer(stringRedisSerializer);
		// hash的key也采用String的序列化方式
		template.setHashKeySerializer(stringRedisSerializer);
		// value序列化方式采用jackson
		template.setValueSerializer(jackson2JsonRedisSerializer);
		// hash的value序列化方式采用jackson
		template.setHashValueSerializer(jackson2JsonRedisSerializer);
		template.afterPropertiesSet();
		return template;

	}

	private RedisSerializer<String> myKeySerializer() {
		return new StringRedisSerializer();
	}

	private RedisSerializer<Object> myValueSerializer() {
		return new GenericJackson2JsonRedisSerializer();
	}
}
